Intel D865GLC Manual - Page 20

controller is disabled and the AGP connector operates in AGP mode. When an ADD card is detected, the Intel Extreme Graphics 2 controller is enabled and the AGP connector is configured for DVO mode. DVO mode enables the DVO ports to be accessed by an ADD card. ADD cards can support up to two display devices with the following configurations: • TV-Out and Transition Minimised Differential Signaling (TMDS) • Low Voltage Differential Signaling (LVDS) • Single device operating in dual channel mode Universal 0.8V / 1.5V AGP 3.0 Connector The AGP connector supports the following: • 4x, 8x AGP 3.0 add-in cards with 0.8 V I/O • 1x, 4x AGP 2.0 add-in cards with 1.5 V I/O • AGP Digital Display (ADD) cards AGP is a high-performance interface for graphics-intensive applications, such as 3D applications. While based on the PCI Local Bus Specification, Rev. 2.2, AGP is independent of the PCI bus and is intended for exclusive use with graphical display devices. AGP overcomes certain limitations of the PCI bus related to handling large amounts of graphics data with the following features: • Pipelined memory read and write operations that hide memory access latency • Demultiplexing of address and data on the bus for nearly 100 percent efficiency Notes: • AGP 2x operation is not supported. • Install memory in the DIMM sockets prior to installing the AGP video card to avoid interference with the memory retention mechanism. • The AGP connector is keyed for Universal 0.8 V AGP 3.0 cards or 1.5 V AGP 2.0 cards only. Do not attempt to install a legacy 3.3 V AGP card. The AGP connector is not mechanically compatible with legacy 3.3 V AGP cards. D865GLC Motherboard Manual 19